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7<title>Accept</title>
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10<h1><CODE>nn::socket::Accept</CODE> Function</h1>
11<h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">
14s32 Accept(
15     s32 s,
16     <a href="../../nn/socket/SockAddrIn/Overview.html">SockAddrIn</a> * sockAddr
17);
18</pre>
19    </div>
20<h2>Arguments</h2>
21    <div class="section">
22      <table class="arguments">
23        <thead>
24          <tr>
25            <td width="15" />
26<th>Name</th>
27<td>Description</td>
28          </tr>
29        </thead>
30        <tr>
31<td>in</td>
32<th>s</th>
33<td>Specifies a socket descriptor. Specifies a socket descriptor created using the <a href="../../nn/socket/Socket.html"><CODE>Socket</CODE></a> function, to which the <a href="../../nn/socket/Bind.html"><CODE>Bind</CODE></a> function has bound an address, and for which a <a href="../../nn/socket/Listen.html"><CODE>Listen</CODE></a> function call succeeded.</td>
34        </tr>
35        <tr>
36<td>out</td>
37<th>sockAddr</th>
38<td>Specifies a pointer to a socket address structure for recording the socket address of accepted connection partners.</td>
39        </tr> </table>
40    </div>
41<h2>Return Values</h2>
42    <div class="section">
43      <br /> <br />
44      <table class="arguments">
45        <thead>
46          <tr>
47<th>Value</th>
48<td>Description</td>
49          </tr>
50        </thead>
51        <tr>
52<th>1 or higher</th>
53<td>Socket descriptor of the accepted connection.</td>
54        </tr>
55        <tr>
56<th><CODE>EINVAL</CODE></th>
57<td>Invalid processing.</td>
58        </tr>
59        <tr>
60<th><CODE>ENETRESET</CODE></th>
61<td>Socket library is not initialized.</td>
62        </tr>
63        <tr>
64<th><CODE>EBADF</CODE></th>
65<td>Invalid socket descriptor.</td>
66        </tr>
67        <tr>
68<th><CODE>EOPNOTSUPP</CODE></th>
69<td>Process not supported.</td>
70        </tr>
71        <tr>
72<th><CODE>ENOBUFS</CODE></th>
73<td>Insufficient resources.</td>
74        </tr>
75        <tr>
76<th><CODE>EAGAIN</CODE></th>
77<td><CODE>O_NONBLOCK</CODE> is set in the socket descriptor and there is no connection currently available for acceptance.</td>
78        </tr>
79        <tr>
80<th><CODE>ECONNABORTED</CODE></th>
81<td>The connection was cancelled.</td>
82        </tr>
83        <tr>
84<th><CODE>ENOMEM</CODE></th>
85<td>Insufficient memory.</td>
86        </tr>
87      </table> </div>
88<h2>Description</h2>
89    <div class="section">
90<p>Accepts incoming connections.</p><p>Retrieves the first new socket connection from the connection queue; creates a new socket with the same socket type, protocol, and address family as the specified socket; and returns the new socket descriptor. The original socket is left to continue receiving connection requests.</p><p>Unless the socket descriptor is set to blocking mode using the <a href="../../nn/socket/Fcntl.html"><CODE>Fcntl</CODE></a> function, <CODE>Accept</CODE> blocks so long as there are no unprocessed connections in the queue.</p><p>This function allocates a backlog of one item in place of the retrieved new socket, but if no backlog could be allocated due to insufficient memory or some other limitation, this function returns <a href="../../nn/socket/ENOMEM.html"><CODE>ENOMEM</CODE></a>, regardless of whether there are any incoming connections.</p><!-- write here --></div>
91<h2>See Also</h2>
92    <div class="section">
93<p class="reference"><a href="../../nn/socket/Fcntl.html"><CODE>Fcntl</CODE></a>, <a href="../../nn/socket/GetPeerName.html"><CODE>GetPeerName</CODE></a>, <a href="../../nn/socket/Listen.html"><CODE>Listen</CODE></a><br /> </p>
94    </div>
95<h2>Revision History</h2>
96    <div class="section">
97      <dl class="history">
98        <dt>2010/06/14</dt>
99<dd>Initial version.<br />
100        </dd>
101      </dl>
102    </div>
103  <hr><p>CONFIDENTIAL</p></body>
104</html>